Alowed for text inputs with special chars

app.py

@@ -216,9 +216,9 @@ def inference(input_str, input_image):
 
     print("input_str: ", input_str, "input_image: ", input_image)
 
-    ## input valid check
-    if not re.match(r"^[A-Za-z ,.!?\'\"]+$", input_str) or len(input_str) < 1:
-        output_str = f"[Error] Invalid input: {input_str}"
+    ## basic validity check: non-empty and reasonable length only
+    if len(input_str.strip()) == 0 or len(input_str) > 1024:
+        output_str = f"[Error] Invalid input length: {len(input_str)}"
         # Create a red placeholder image to indicate an error
         output_image = np.zeros((128, 128, 3), dtype=np.uint8)
         output_image[:] = (0, 0, 0)  # Red color in RGB